Lumber-boom gap



(No Model.) 2 Sheets-Sheet I.

W. H.'ROAN. 7

LUMBER BOOM GAP. v No. 371,788. Patnted Oct. 18, 1887.`

INVENTOR.

. passage of floatage down the river.

flUNITED STATES -PATENT OFFICE.

WILLIAM HENRY ROAN, OF WILLIAMSBURG, KENTUCKY.

LUMBER-BOOM GAP.

SPECIPICATION forming part of Letters Patent No. 371,788, dated October 18, 18 87.

Application filed April 7, 1887. Serial No. 234,071. (No model.) i

To aZZ whom it may concern.-

Be it known that I, WILLIAM HENRY RoAN, a citizen of the United States, residing at Williamsburg, in the county of Vhitley and State of Kentucky, have invented certain new and useful Improvements in Lumber-Boom Gaps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to Which it appertains to make and use the same.

My invention relates to improvements in those portions of lumberbooms used in connection with the selecting, guiding, and pocketing of logs and the separating of the same from drift and debris borne by the current of the river.

Of the accompanying drawings, forming part of this specification, Figure 1 is a plan View of my improvenents adjusted for operation to asuitable boom. Fig. 2' is a plan view of part of the improvements, showing the sheer N D detached to permit the unobstructed Fi'gs. 3 and 4 are details of a fastening I use between the sheer ND and part of the main shore-section A A of the boom. Fig. 5 is a detail of another fastening used between the brace K E and part of the main shore-section A A of the boom.

R R, Fig. 1, is the stream of the river in which the boom with my improvements is located, the current being in the direction of the arrows. o

A A is the main shore-section of the boom, in which the logs borne by the current, when caught, are stored, and B B is the tail-boom, by which the logs are brought within requisite distance of the main shore-section.

Zlllare lines raised on upright pins and connecting parts of the boom with each other and parts with the shore, as shown.

O 'is a gap in the main shore-section of the boom, the parts F and F' of the main shoresection above and below the gap being con- 4nected by a chain or line raised over blocks on the ends of F and F' and crossing the gap O at a sufficient height above the surface of the water to permit logs to pass unobs'tructedly under.

My improvements consist of a drift-sheer, S O, fastened to the main shore-section of the boom at S, and held in position by said fastenin g, by the force of the current, by the wedge of logs M, resting against the log P of the main shoresection, and by the brace g of the movable platform R P, the nio-vable platform R P moored at R to the drift sheer S C, free at P, and held at any desired position in the current by said fastening at R, by the brace g, and by the lines Z, connecting the platform with other parts of the boom or boonrgap; N D, a movable and detachable sheer, free at N, joined to the main shore-section at D, and held at any desired angle with the main shore-section by' the brace K E, adjustable along the length of the log V, and by the bracef and line Z,- T B, a movable driftsheer and section of the tailboom B B, noored to the tail-boom at T, free at B, and held in any desired position in relation to the other parts of my improvements by the force of the current and the lines Z l.

The number of braces or their construction, the number of lines or points of attachment for them-ein short, the details generally-may be varied or changed as convenience dictates.

In Fig. 2 the sheer N D and its brace K E are shown detached from and lying alongside the main shore-section of the boom. The details ofthe fastenings which hold the sheer and its brace to the main shore-section and whose unlocking throws them into detachment are shown in Figs. 3, 4, and 5.

In Fig. 3 the sheer N D is shown attached to the log V of the main shore-section. The log V is scarfed at the end to receive the end of the sheer D, which is cut to tit the scarf. Passing horizontally through D is an eyebolt, c, from the eye of which depends a chain of several large links, w wx. The log V is pierced horizontally by the hole m mm m, which is large enough to admit a manls hand, to draw through the large-linked chain, and vertically by the hole in which the pin (l is now fitted, the pin passing also through one of the links of said chain and thus fastening thejoint. The log V is scooped at the end to admit access to the hole m m m m. The act of fastening this joint is as follows: D, the end of the sheer ND, is moved into the scarf of V. The workman reaches his hand through the horizontal hole m m m m in the log V, seizes the large-linked chain a: w x, and pulls it through the hole. Then the pin d is dropped through the vertical hole in the log V, passing through one of the links of said chain, and thus completing the fastening.

In Fig. 4 the sheer N D is shown detached from the log V, the detachment having been ieffected by taking out the pin cZ from the hole d'. I

Fig. 5 shows the brace K E fastened to log V of the float F'. a is an eyebolt passing horizontally through the brace near its end E. t is a chain depending from said eyebolt. r is a similar chain around the log V. The end link of t is an ordinary chain-lock or lockinghook, composed of the yoke 1 2 3, provided with eyes, shown adjacent to 1 and 3, on an axle, passing through which works the hook z, for hooking through the link 11', and secured by the sliding ring o v.

In practice my improvements operate as follows: The movable platform R P and the movable and detach'able sheer N D are opened at such angles in relation to each other as will permit work men standing on the platform to separate .the logs from the drift and debris coming down the channel R R and easily guide the logs within a line sighted from O to N, when, either by the force of the current, by inpinging against the sheer N D, or by workmen standing on the walk c or the float F or other part of the gap, the logs are fur- Vther directed through the gap O into the pocket behind the main shore-section of the boom, while the drift and debris pass down the channel and beyond the gap without interceptionr VVhcn, from the absence of drift or a run oflogs too numerous to be assorted, it is desirable to force everything coming down the current into the pocket behind O, the movable sheer and section of the tail-boom T B may be closed across the current until it forms a line with N D oceupying the position shown by the dotted representation of T B. In this way the entire tloatage may be pocketed. It is designed that T B,in connection with N D and R P,shall at all times be adjusted to meet the varying requirements of river, current, fioatage, boon, and workmen. scribed forfastening and unfastening the sheer N D,with its brace K E,to and from the float F' of the main shore-section of the boom,the sheer and brace can be detached the instant an undude pressure of logs or drift threatens to damage or break the boom or gap, and, assuming` the position shown in Fig. 1, lie alongside the main shore-section out of the current, letting the threatening material float by until the danger is past. This detachment may be effected with the utmost dispatch and ease by one workman, or by two, knocking the sliding ring p p from the hook z, Fig. 5, and drawing the pin d from the hole d', Figs. 3 and 4.

Among the advantages of my improvement are the following: The current is utilized to convey the logs into the pocket of the boom. The work men are relieved of the labor of dragging the logs out of the current, stooping to pull them under chains and lines, and forcing them into the pocket. As a consequence of these two advantages, fewer workmen can operate a boom supplied with my improved gap By means of the devices deg than are required on the old booms. Then the ease with which the movable and adjustable parts described may be brought into united operation will in many cases, especially on rivers subject to sudden changes in volume and swiftness, render a boom with my improvements serviceable, when without them work would have to be suspended or inadequately performed.

Vhat I claim as new, and desire to secure by Letters Patent, is*

1. In a lumber-boom, the combination,with the main shore-section, of a drift-sheer moored at its front end to the head of such section at the mouth of the boom, and aworking-platform adj ustablyseeured to the rear end of such drift-sheer and fended from floatage thereby, substantially as set forth.

f 2. The combination of the main shore-section A A, comprising the portions F F', ad-

.justed a sufficient distance apart to form an opening or mouth for the pocket O, and having chain-connection with each other, with the sheer T B, located upon the opposite side of the current from the main shore-section and connected thereto by the linesl Zof the sheer N D, detachably secured to the platform F' of the main shore-section and extending out into the current at such angle as to act,in conjunction with the sheer T B, to guide the entire floatage of the current beneath the chain connecting the sections F F' and into the pocket O, substantially as described.

3. In alumber-boon, the combination, with the sheer N D, having detachable connection with the main shore-section, of a movable sheer, T B, connected upon the opposite side of the current and adapted to be swung outwardly to bring its rear end into alignment with the forward end of the sheer N D, substantially as and for the purposes set forth.

at. A lumber-boom consisting of a platform to support workmen, which is fended from floatage by a drift-sheer moored at the front end of the main slore-seetion, and to the rear end of which drift-sheer the platform is connected in such manner as will enable it to be swung in and out of the current to such positions as will enable the workmen thereon to guide the logs within the reach of a co-operating detachable sheer connected to the rear or upper end of the main shore-section, which insures the passage of the logs into the pocket of the boom, and a movable sheer and tail boom section located upon the opposite side of the current and capable of being brought into such relationv with the said platform and said lastnamed sheer as will force the entire floatage of the river into the pocket of the boom, substantially as set forth.

In testinony whereof I affix my signature in presence of two witnesses.

WILLIAM HENRY ROAN. Witnesses: i

J AMEs R. Wnrrnnousn, THoMAs RoAN.

IIO 

